There isn’t a listed max amount of miscellaneous items that can be carried. So if you can afford it, you can carry. A character can not carry more than 2 Close Combat Weapons and 2 Ranged Weapons, plus Free Dagger. The Dagger had to be listed as “Free Dagger”
There are some cases where a character could use 2 C.C. Weapons and Dagger. Tail Fighting is one. And My group allows Mutants with more than 2 arms, to use the Dagger in the third arm, and punch with any other arms.
On the weapon’s issue with Free Dagger: my group discussed it at length, many years ago. It started with Injury Results of “Captured” and “Robbed”. The Q&A says, that a character would not be without his Dagger. Okay, I could see a character not willing to get up his “Last Line of Defense”. But what if he’s Robbed or Captured? Would the Enemy be so cruel to take Everything and leave him a Dagger. Or, “You’re my prisoner! I’m going to sell you to Slavers. Thanks for all your gear. Oh by the way, Here’s your Dagger back.” I would doubt it. We agreed that if you could lose your Dagger, you could buy a new one. A “Free Dagger” could not be sold, but could be given to a team mate, if that member was short on gold to buy other weapons or put into Storage at camp if the dagger is no longer needed, but maybe needed latter.
Maybe, this last would be a good starting thread for a new topic. Hmmm.